<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div {
            position: relative;
            overflow: hidden;
            width: 100%;
            height: 20em;
            background: #000;
        }

        ul {
            border: 1px solid #ccc;
        }

        img {
            width: 100px;
            height: 100px;
        }
    </style>
</head>

<body>
    <div>
        <ul>
            <li><a href="11">
                    <img src="" alt="">
                </a></li>
        </ul>
    </div>
</body>

</html>